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Sagot :

INEQUATION

Bonsoir,

Résoudre les inéquations:

  • 5(x-2) ≤ 4x-2

5x-10 ≤ 4x-2

5x-4x ≤ -2+10

x ≤ 8

S= ] - ∞; 8 ]

  • -6(2x+2) ≥ 3x-27

-12x-12 ≥ 3x-27

-12x-3x ≥-27+12

-15x ≥ -15

x ≤ 1

S= ]- ∞; 1 ]

  • 5-2(x+3) ≥2(x+1)-4(x-2)

5-2x-6 ≥ 2x+2-4x+8

-2x-1 ≥ -2x +10

-2x+2x ≥ 10+1

0 ≥ 11  pas de solutions

  • 7x-21-8x+2 < 14-2x-x-3

-x-19 < -3x+11

-x+3x < 11+19

2x < 30

x < 30/2

x < 15

S= ]- ∞; 1[

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